Foot warmer



FIG. 1 is a front elevation view of a foot warmer showing the newdesign;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof; and,

FIG. 7 is a front, top, and left side perspective view thereof.

The portions of the design shown in broken lines are portions of thefoot warmer that form no part of the claimed design.

CLAIM The ornamental design for a foot warmer, as shown and described.